Biology

Biology

A natural science concerned with the study of life or living matter in all its forms and phenomena, especially in relation to their origin, growth, reproduction, structure, behaviour and evolution.

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Biology > Immunology

C5a receptor

Biology; Immunology

The receptor for the C5a fragment of complement, the C5a receptor, is a seven-transmembrane spanning receptor that couples to a heterotrimeric G protein. Similar receptors bind to ...

recessive lethal gene

Biology; Immunology

A recessive lethal gene encodes a protein that is needed for the human or animal to develop to adulthood; when both copies are defective, the human or animal dies in utero or ...

homeostasis

Biology; Immunology

Homeostasis is a generic term describing the status of physiological normality. In the case of lymphocytes, homeostasis refers to an uninfected individual who has normal numbers ...

tapasin

Biology; Immunology

Tapasin, or the TAP-associated protein, is a key molecule in the assembly of MHC class I molecules; a cell deficient in this protein has only unstable MHC class I molecules on the ...

B-lymphocyte stimulator (BLyS)

Biology; Immunology

BLyS is a secreted member of the TNF family of cytokines. It is secreted by T cells and plays critical roles in germinal center and plasma-cell formation, and possibly ...

serotype

Biology; Immunology

Different strains of bacteria and other pathogens can sometimes be distinguished by their serotype, the ability of an immune serum to agglutinate or lyse some strains of bacteria ...

TH1 cells

Biology; Immunology

TH1 cells are a subset of CD4 T cells that are characterized by the cytokines they produce. They are mainly involved in activating macrophages, and are sometimes called ...